866470457 has 2 divisors, whose sum is σ = 866470458. Its totient is φ = 866470456.

The previous prime is 866470417. The next prime is 866470483. The reversal of 866470457 is 754074668.

It is a happy number.

866470457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 546203641 + 320266816 = 23371^2 + 17896^2 .

It is a cyclic number.

It is not a de Polignac number, because 866470457 - 2⁶ = 866470393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (866470417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433235228 + 433235229.

It is an arithmetic number, because the mean of its divisors is an integer number (433235229).

Almost surely, 2^866470457 is an apocalyptic number.

It is an amenable number.

866470457 is a deficient number, since it is larger than the sum of its proper divisors (1).

866470457 is an equidigital number, since it uses as much as digits as its factorization.

866470457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 866470457 is about 29435.8702436330. The cubic root of 866470457 is about 953.3475465168.

The spelling of 866470457 in words is "eight hundred sixty-six million, four hundred seventy thousand, four hundred fifty-seven".